O-NEX Xenon D1S D2S 35W HID Ballast W003T20071 - OEM Replacement for BMW 1 2 3 5 7 Series X1 Z4 - Direct Fit Plug & Play Headlight Control Unit Module

- OEM Replacement HID Ballast - Direct replacement for BMW 1, 2, 3, 5, 7 Series, X1, and Z4 models (2009-2012). Compatible with OEM part numbers 63117237647, 7237647, and W003T20071. - Plug & Play Installation - Easy, direct-fit replacement for your factory HID ballast. No modifications needed, ensuring a hassle-free installation process. - High-Performance 35W Xenon HID Ballast - Designed for optimal performance with 35W power output, ensuring bright and reliable headlight performance. - Durable & Waterproof Design - Built to withstand harsh conditions, this ballast is 100% waterproof, shockproof, and vibration-resistant for long-lasting durability. - Compatible with D1S & D2S Bulbs - Works seamlessly with D1S and D2S HID bulbs, making it a versatile replacement for various BMW models.

Product description

W003T20071 7237647 OEM Ballast Replacement

For 2009-2012 BMW 1 2 3 5 7 Series X1 Z4

Premium Material

Fitments

Bundle your New Ballast with New Bulbs

How can I tell if this is the correct part for my car model?

How to check if it is the bulb or ballast went bad on my headlight?

What's included in the order?

Direct replacement for OEM Xenon Headlight Ballast

Upgrade your vehicle's lighting system with the O-NEX HID Ballast, this D1S ballast can directly replace the original parts: 63117237647, 7237647, W003T23171, 63117318327and 7318327 according to meeting or exceeding OEM specifications, ensuring a perfect fit and reliable performance.

Designed with full body metal housing - this Ballast Headlight Control Unit Module is easy to install, plug and play installation, no need to program or code the car, very suitable for left or right headlights, please rest assured to buy.

How can I tell if this is the correct part for my car model?

The best way to do is to take out the original part and check the part number see if it match the cross reference. Other ways is to check Amazon part filter; check owner's manual.

How to check if it is the bulb or ballast went bad on my headlight?

An easy SWAP TEST will let you find the problem. Try to switch around the not working bulb to the other side (driver/passenger side) to test it. If the same bulb still doesn’t work with the other side’s ballast, that mean it is the bulb’s problem.

What's included in the order?

1x Ballast only! Does not include bulb and wiring harness.